Title :
Ultra-Wideband CMOS Differential Colpitts VCO with adaptive gm bias for the 60GHz WPAN
Author :
Kim, Ki-Jin ; Ahn, K.H.
Author_Institution :
Syst. Package Res. center, Korea Electron. Technol. Inst., Seongnam, South Korea
Abstract :
A Ultra-Wideband CMOS Differential Colpitts VCO for 60GHz WPAN fabricated with the 90nm TSMC Process is presented. The VCO is composed of a NMOS transistor-pair as a core circuit, 3 bit capacitor array for enhancement of the oscillation bandwidth, and adaptive gm bias for desensitizing process variations. The proposed architecture can operate at 28~34GHz and the phase noise at 1MHz offset is -112dBc/Hz. The power consumption of the VCO including inherent buffer is 21.6mW. Compared with previous studied works, the proposed VCO has the widest bandwidth at mm-Wave frequency.
Keywords :
CMOS integrated circuits; personal area networks; ultra wideband communication; voltage-controlled oscillators; WPAN; frequency 28 GHz to 34 GHz; frequency 60 GHz; power 21.6 mW; ultra wideband CMOS differential Colpitts VCO; Adaptive arrays; Bandwidth; CMOS process; Capacitors; Circuits; Energy consumption; MOSFETs; Phase noise; Ultra wideband technology; Voltage-controlled oscillators; 60 GHz WPAN; Colpitts VCO; Wideband width; adaptive bias;
Conference_Titel :
Signals, Circuits and Systems (SCS), 2009 3rd International Conference on
Conference_Location :
Medenine
Print_ISBN :
978-1-4244-4397-0
Electronic_ISBN :
978-1-4244-4398-7
DOI :
10.1109/ICSCS.2009.5412571
